Process for applying a wrapper by mechanical means to a cigar bunch



Oct. 26, 1937. Y c. F. ROBER 2,095,919

PROCESS FOR APPLYING A WRAPPER BY MECHANICAL MEANS TO A CIGAR'BUNCH Filed Jan. 3, 1955 s Sheets-Sheet-I Fig-1 3 /5 I I 33 0d. 26, 1937. c, F, Q 2,096,919

PROCESS FOR ARPLYING A WRAPPER BY MECHANICAL MEANS TO A GIGARBUNGH Filed Jan. 3, 1933 s Sheets-Sheet 2 Fig.3

Oct 26, 1937.

r c. RGBER 2,096,919

PROCESS FOR APPLYING A WRAPPER BY MECHANICAL MEANS TO A CIGAR BUNCH Filed Jan 5, 1933 3 sheets-sheets Patented Oct. 26, 1937 UNITED STATES PROCESS FOR APPLYING A'WRAPPER BY MECHANICAL MEANS TO A CIGAR BUNCH Constantin Friedrich Itiiber; Dresden, Germany,

assignor to Universelle Cigarettenmaschinen- Fabrik, J. C. Miiller & 00., Dresden, Germany Application .lanuary 3,

1933, Serial No. 6505001 In Germany March 21, '1932 21 Claims.

In the application of a wrapper to the finished cigar bunch it is important that, notwithstanding the shape of the cigar, the wrapper should be applied fauitlessly, without the formation of creases. The difiiculty in fulfilling this requirement increases in proportion to the complexity of the shape of the cigar, and difficulties occur particularly when the end of the cigar is. of conical form, and then, merges into a straight -or curved form. V

The present invention is concerned with the problem of rendering it possible: to apply the wrapper without creases and smoothly, by mechanical means. In this case the wrapper is conducted on a carrier to a cigar bunch resting in a nest, of rollers or the like; and turned about its longitudinal axis. Methods are known of controlling these carriers, in order, in the feeding of the wrapper, to follow the shape'of the bunch as 1 far as possible, but no completely satisfactory result has yet been obtained.

If, however, according to this: invention, while the wrapper is being applied to the conical end of the cigar bunch, the wrapper carrier is caused to pivot about an axis located at the apex of the cone, the wrapper can be applied quite smoothly to this cigar end by suitable pivotal movement'of the wrapper carrier, whereupon. the further control of the carrier may proceed in known manner 1 in order to apply the rest of the: wrapper to the bunch. When, as is often the case, the carrier must be located at a certain height above the centre line of the cigar bunch, a corresponding correction must also be made in the said pivotal axis of the carrier. According to the present invention, this is done by suitably displacing the pivotal axis laterally from the centre line, namely ina plane which is located at right angles to this longitudinal centre line of the bunch and passes through the apex of the core.

In the example of construction shown in the annexed drawings, a suction head serves in' known manner as a wrapper carrier which is.car-' ried by a control mechanism and brings one end of the wrapper in known manner to the cigar bunch which is adapted to be rotated in a' nest of bunch rollers. In this form of construction the arrangement is such that the pivotal point of the suction head on its carrying mechanism, during the application of the Wrapper to the tip of the bunch, coincides with the tip (suitable correction being made).

Fig. 1 is an elevation of: the device.

Fig; 2. is aplan thereof.

Figs. 3 and 4 are detailed views in front and side elevation respectively.

Figure 5 is a partial plan view showing the suction head i in position to wrap the end of the wrapper about the tip of the cigar;

Figure 6 is a diagrammatic view illustrating the various positions assumed by the wrapper in its application to the cigar.

Figure 7 is a View similar to Figure 3 with the axis of the wrapper carrier coinciding with a vertical line dropped through the apex of thecigar cone.

Figure 8 is a side elevation of the parts shown in Figure '7.

Figure 9 is a detailed elevation partly in section illustrating the wrapper-delivering device in its relation to the wrapper support.

Figure 10 shows the same construction as in Figure 9 with the parts in difierent positions.

As may be seen from FigJl, the pivotal axis of the wrapper carrier, which in the present form of construction consists of a suction head I, is

so arranged that itpasses through the apex :1: of

wrapper support which isbalanced by displacing.

the pivotal axis of the wrapper carrier sideways from the centre line 2, into a plane which is located at right angles to the longitudinal centre line y of thebunch and passes throughthe apex at. This axis, which takes into consideration the distance ofthe wrapper support from the bunch axis, is denoted by z in Fig. 3. While the wrapper D is being applied to the conical end of the cigar Zi, the suction head, therefore, merely performs a swivelling movement about the axis 2. How this movement is produced is shownby means of the form of construction illustrated in Figs. 1 and 2.

The suction head I is mounted'by means of a pivot l in a head 2, the axis 2' of which assumes the position in relation to the cigar bunch Zi illustrated by means of Figs. 3 and 4. With the end of the pivot I, which protrudes through the head 2 there engages a lever 3 which is connected by a link 4 withthe' lever arm 5' of a main driving shaft I9 of the machine.

arm 8.

double-armed lever 5, 6 which is mounted at I on an arm 8 which is mounted on a hollow pivot 9. The head 2 is mounted on a hollow arm II], which is carried by a suitable hollow bearing II. Ihe latter is mounted on a hollow arm I2 which is connected with the hollow part of the pivot 9. The suction pipe (not shown in the drawings) is connected to a fixed part I3, in which the hollow pivot 9 is mounted, which pipe communicates by way of a throttle valve with a fan or the like.

On the hollow pivot 9 is mounted a spur wheel It with which a toothed segment I co-operates. The toothed segment I5 is secured to a double armed lever l5, which has its fixed pivot on the machine frame at I6. The free end of the lever 55 engages by means of a roller H in a groove I8 of a cam track I8 which is mounted on the This shaft I9, mounted on the machine frame at and 20, is driven by the main shaft 2| which, by means of the worm 22, drives the worm wheel 23 mounted on the shaft I9.

The arm 6, of the double-armed lever 5, 6, is

. provided with a roller 24 which engages in a cam groove 25, formed in a pivoted link 25 which is mounted on a pivotal axis 25 provided on the machine frame. A link 21 is pivotally connested at 25" to the link 25, and this link 2'! at its other end is pivotally connected at 23 to a lever 28.

The latter is pivotally mounted on the machine frame at 29. A roller provided thereon engages a cam 32 by the action of a spring 33, which is attached to the lever 28, the cam 32 being mounted on the shaft I9.

The hollow arm If! is provided with an extension I9 with which, at ID", the link 33 engages which, on the other side, is connected at 34' to the arm 34 of a double-armed lever 34, 35. The latter is mounted by means of a pivot 36 on the The free arm of the double-armed lever 34, 35 co-operates by means of a roller 38 with the cam part 3'! of the cam member 31 attached to the machine frame.

The wrapping device consists as in the usual manner, of the two lower wrapping rolls W and the two upper rolls W. The four wrapping rolls form together the wrapper roll nest which serves for the reception of the bunch. Two of therolls, generally the lower rolls, are set in rotation by well known means such as shown in Patent #808,745 and the bunch which is held between the four rolls is likewise turned about its axis. During this rotation the cover sheet is applied and wound or wrapped. The wrapping rolls W and W are journalled in the two upwardly extending arms 48 and 42 of the block 4|. In order that the finished cigars can be removed from the roller nest and/or a fresh bunchcinserte'd,

the upper rolls W are mounted so as to swing out in the usual manner so that the nest can be opened and closed for these operations. The above mentioned patent, namely, Patent #808,745 shows a finger for removing the end of the wrapper from a support and pressing it on a fiiler. Patents #1,267,'734 and 1,899,194 illustrate how the upper rolls may be swung out so that the cigars may be removed after the wrapper has been applied and a new filler or bunch inserted in the filler roll nest.

In Figure 5 of the drawings the wrapper support or suction head I is shown at the position which it will assume immediately prior 'tothe final pivoting movement thereof in order to apply the end of the wrapper to the cigartip. The diagrammatical view of Figure 6 illustrates clearly the various positions assumed by the wrapper as it is applied to the cigar bunch.

With respect to Figures 7 and 8 these show the same construction as in Figures 3 and 4 but in this case the suction head is not offset from a vertical line dropped through the apex of the conical end of the cigar. The pivotal axis z of the suction head I coincides with the vertical line 2 dropped through the apex of the conical end of the cigar y. In this form the suction head is located as close to the filler Zi as permissible.

In Figures 1, 9 and 10 the wrapper applying mechanism as shown in this delivery device consists of a finger having a flexible tip 50, formed of any suitable material-as, for instance, steel wire-and a shank 5 I, to which the tip is secured in any desired manner. This finger may be operated and supported in any desired manner. As shown, however, one of the stationary parts of the machine is provided with a bracket 52 through which the rear portion of the shank 5| of the finger passes loosely. The finger is further supported by a suitable guide, and in the preferred construction this guide will be made adjustable, so that the finger may be properly directed in its movements. The particular construction of this guide may be varied within wide limits. As shown, however, it embodies a circular block 53,

said block being provided with a conical recess 54, eocentrically located therein.

In the construction shown this block is mounted in a bearing formed in a. standard 55, which is secured to the frame of the mechanism and which serves to support some of the shafts of said mechanism. The block is held in position by a strap 56, the strap being secured in suitable manner. The shank of the finger is provided in the particular construction shown with a conical collar 51.

The movement of the finger may be produced by mechanism of any suitable character. As shown, the shank passes through a perforation in a bent end 58 of an operating rod 59, this bent end lying between the collar 57, before referred to, and a second collar 60, secured to the shaft in any suitable manner. This rod 59 connects with one of the arms 6| of a bell crank lever 6|, 62. The bell crank lever is pivoted at 63 to the frame of the machine. The bell crank lever is operated by means of a cam roller coacting with a cam mounted on one of the cam shafts of the machine. This construction is fully disclosed in Patent No. 808,745 referred to above.

The mode of operation of the apparatus is as follows:

' After the suction head I has removed the wrapper from the cutting device 39 in known manner, the suction head passes into the position indicated by full lines in Fig. 2, and the pivotal axis z assumes the position indicated in Figs.

3 and 4. After the corresponding end of the wrapper has been applied by the known applying-device (applying finger or the like such asshown in Patent No. 808,745) to the end of the bunch, the latter is set in rotation by the rollers of the nest of rollers. During this operation the suction head, actuated by the mechanism 4 to I, inclusive, and 24 to 32, inclusive, performs a pivoting movement about the axis a to the position indicated in Fig. 2 by dotted lines and denoted by a. During this time the conical end of the cigar bunch has been provided with a wrapper. Thereupon the suction head, with simultaneous removal of the pivotal axis a,

A returning spring 64 is provided...

stems moves from. "the position indi-(atedin Fig." 2 (which. is effected by" simultaneous movements of the mechanism- 4', l2, 33); to the "position in dicated by dotted lines and denoted *by 1) (see Fig. 2 Bythis movement, the part where the conical part of the cigar merges into the cylin drical partis pr ovide'd with thewrapperj 'Ihenf the suction head performs aparallel' movement in the direction indicated by the-arrow in Fig; 2. In this and the subsequent phases of operation the cam member returns-"gradually"-to-its initial position. This parallel displacement of the suction head I occurs with the-co-operation of the entire mechanism to the influence of which the suction head is subjected; Afteri'the cylindrical part has been provided with the wrapper, the suction head again performs'the' usual. pivoting movement, in order that the Wrapper may be applied uniformly to the cigar t p- I .I I-Iaving thus described the nature of the sai'd invention 'and'the best mean'sIknow-of c'a'rrying the same into practical effect,I claim:fi

l. The method of applying .a' wrapper to a cigar bunch comprising pivoting the wrapper without lateral displacement of the entire wrapper as the same isapplied to the conical end of the cigar bunch and then moving the wrapper along the longitudinal axis of the cigar bunch as the same is applied to the main body of the cigar bunch.

2. In the method of wrapping a wrapper around a cigar bunch, the step of pivoting the wrapper without lateral displacement of the entire wrapper around a line parallel to a line passing through the apex of the conical end of a cigar bunch. a

' 3. In the method of wrapping a wrapper around a cigar bunch, the step of swinging the wrapper without lateral displacement of the entire wrapper around a substantially vertical line passing through the apex of the conical end of a cigar bunch.

4. The method of wrapping a'wrapper around a cigar bunch comprising pivoting the wrapper without lateral displacement of the entire wrapper about an axis corresponding approximately with a vertical line passing through the apex of the conical end of a cigar bunch, then moving the wrapper along the longitudinal axis of the cigar bunch to wrap the main body portion, and then again pivoting the wrapper about an axis corresponding with a vertical line passing through the tip of the cigar bunch.

.5. In the method of wrapping a wrapper about a cigar bunch, the step of moving the wrapper in a turning movement without lateral displacement of the entire wrapper about a substantially vertical line passing through the apex of one end of the cigar bunch.

6. The method of wrapping a wrapper about a cigar bunch comprising applying one end of the wrapper to a conical end of a cigar bunch and then rotating said wrapper without lateral displacement of the entire wrapper from a point above said cigar bunch.

7. The method of wrapping a wrapper about a cigar bunch, comprising applying one end of the wrapper to a conical end of a cigar bunch and then rotating said wrapper without lateral displacement of the entire wrapper from a point above said cigar bunch, and then moving the wrapper along the body of the cigar bunch.

8. An apparatus for wrapping cigar bunches, comprising means for applying an end of a wrapper-teaconical -shaped end ofa cigarbunch;

with the apex of a conical end of the bunch sooas.

to apply a cigar wrapper'unif'ormly about said conicalend. i'. E;

10. ;Ati apparatusifor wrapping cigar bunches, comprising: a wrapper. carrier, means, for pivoting said wrapperz'c'arrier without lateral displacement of the'entire wrapper .carrier about a fixed point during the applying ofzthe wrapperto the conical end ofiaicigar bunch, and, means for movingsaid wrapper carrier in accordance. with the contour 'of the-main body of ?the:;cigar, bunch during the wrapping'bf the; main body with saidwrapper.

11. An apparatus for wrapping cigar bunches, comprising a wrapper carrienmeans for pivoting said wrapper carrier without lateral displacement of the entire wrapper carrier about a fixed'point during the applying of the wrapper to the conical end of a cigar bunch, and means for moving said wrapper carrier in accordance with the contour of the main body of thecigar bunch during the wrapping of the main body with said wrapper, and means for again pivoting said wrapper carrier about a second fixed point during the wrapping of the tip of the cigar bunch.

12. An apparatus for wrapping cigar bunches, comprising a carrier, a'suction head pivotally said suction head in said carrier without lateral mounted in said carrier, and means for pivoting 40 displacement of the entire suction head about a V 7 point fixed with relation to the apex of the conical endof a cigar bunch during the applying of the wrapper to said conical end.

' 13. An apparatus for'wrapping cigar bunches, comprising bunch rolling -means, wrapper cutting means, a carrier, a suction head pivotally mounted in said carrier, means for swinging said suction head from the wrapper cutting means, to the bunch rolling means, and means for swinging said suction head in said carrier, about tempo-.

rarily fixed points without lateral displacement of the entire suction head.

14. An apparatus for wrapping cigar bunches, comprising a carrier, a suction head pivotally mounted in said carrier, means for swinging said carrier so as to transport wrappers, and means for pivoting said suction head in said carrier while said carrier is maintained in fixed position.

15. An apparatus for wrapping cigar bunches, comprising a carrier, a suction head pivotally mounted in said carrier, means for swinging said carrier and means independent of said means for swinging said carrier for pivoting said suction head in said carrier without lateral displacement of the entire suction head. j

16. An apparatus for wrapping cigar bunches, comprising a carrier, a suction head pivotally mounted in said carrier, wrapper cutting means,

' bunch rolling means, means for swinging said.

carrier from said wrapper cutting means to said bunch rolling means, a lever connected to said suction head, a link connected to said lever, a

. double-armed lever connected to said link, and a pivoted cam track operating upon said double-,

armed lever so as to'actuate said suction head in said carrier. v

17., An apparatus for wrapping cigarbunches, comprising a carrier, a suction head pivotally mounted in said carrier, wrapper cutting means, bunch rolling means, -means for-swinging said carrier from said wrapper cutting means to said bunch rolling means, a leverfixed to said suction head, a link fixed to said lever, a double-armed lever pivotally connected to said link, a roller carried by said double-armed lever, a pivoted cam having a slot in which said, roller operates, and cam means for actuating, said pivoted cam so as to actuate-said double-armedlever, link, and lever to pivot said suction head in said carrier. 7 18. An apparatus for wrapping cigar bunches, comprising a pivotally; mounted suction arm,,a carrier pivotally mounted upon saidarm,:a suction head pivotally mounted in; said carrier,- z'and means for pivoting said suction ahead independe ently 'of the movements of said hollow arm.

19. An' apparatus for-wrapping cigar bunches comprising a carrier, a suction head for applying a wrapper to a cigar bunch and pivotally mounted aoeao a in said carrier, andmeans for rotating said suction head about a fixed axis lying in a plane perpendicularto the'axis, of and passing through the apex of thecigarbunch. r

v 20. An apparatus for wrappingr cigar bunches comprising a carrier, a suction head for applying a wrapper to a cigar-bunch and pivotally mounted in said carrier, bunch rolling means located below said suction head, and means for rotating said suctionhead about a' fixed axis lying in a plane perpendicular to the axis of and passing through the apex of the cigar bunch positioned in the rolling means. 7 v

a 21. An apparatus for wrapping cigar bunches comprising a carrier, a suction head for applying a wrapper to a, cigar bunch and pivotally mounted insaid carrier, and means for pivoting said suction'head about a fixed axis lying in a plane perpendicular-to the axis of the cigar bunch and laterally displaced from the apex of the cigar bunch, said displacement being determined by the difference in height between the longitudinal center of the cigar bunch and the carrier.

' .CONSTANTIN FRIEDRICH RBER. 

